A353578 Numbers in the smallest subset of N containing 3 and closed under the mappings k->2k + 1, k->8k + 3, and k->16k + 3.

3, 7, 15, 27, 31, 51, 55, 59, 63, 103, 111, 115, 119, 123, 127, 207, 219, 223, 231, 239, 243, 247, 251, 255, 411, 415, 435, 439, 443, 447, 463, 475, 479, 487, 495, 499, 503, 507, 511, 819, 823, 827, 831, 871, 879, 883, 887, 891, 895, 923, 927, 947, 951, 955, 959, 975, 987, 991, 999, 1007, 1011, 1015, 1019, 1023

Offset: 1

Author

Paul K. Stockmeyer, May 03 2022

Keywords

• nonn

Links

• Paul K. Stockmeyer, Table of n, a(n) for n = 1..1155
• Andreas M. Hinz and Paul K. Stockmeyer, Precious Metal Sequences and Sierpinski-Type Graphs, J. Integer Seq., Vol 25 (2022), Article 22.4.8.